为了实现一个高效且合理的日志记录方案，我们需要在系统架构层面进行细致规划。在某些情况下，一个前端页面可能会调用多个辅助接口来完成整个业务流程，而并非所有这些接口的交互都需要被记录到日志中。为了避免不必要的日志开销，并确保日志系统的可读性和有效性，我们可以采用以下策略：
日志记录策略概述
前端控制：
前端在发起请求时，可以通过HTTP头（Header）传递一个标志，指示当前请求是否需要记录日志。例如，可以使用一个自定义的Header，如operation-log，其值可以是true或false。
后端响应：
后端服务接收到请求后，首先检查该Header的存在及值。如果该Header存在且其值为true，则后端将记录此次请求的相关信息；反之，则忽略日志记录。
下面贴出核心代码
注解
import java.lang.annotation.*;@Target(ElementType.METHOD)
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface Loggable {// 接口信息String value() default "";// 是否记录响应结果，默认为trueboolean logResponse() default true;// 模块String module() default "";// 类型 insert 新增 delete 删除 select 查看 update 修改String type() default "";}
配置信息
import cn.com.nmd.base.constant.Constants;
import cn.hutool.core.util.IdUtil;
import org.slf4j.MDC;
import org.springframework.web.filter.OncePerRequestFilter;import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;public class TraceIdFilter extends OncePerRequestFilter {@Overrideprotected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)throws ServletException, IOException {String traceId = IdUtil.objectId();MDC.put(Constants.TRACE_ID, traceId);try {// 响应头中添加 traceId 参数，方便排查问题response.setHeader(Constants.TRACE_ID, traceId);filterChain.doFilter(request, response);}finally {MDC.remove(Constants.TRACE_ID);}}}
import cn.com.nmd.auth.log.mdc.TraceIdFilter;
import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
import org.springframework.boot.web.servlet.FilterRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.Ordered;@Configuration
@ConditionalOnWebApplication
public class TraceIdAutoConfiguration {@Beanpublic FilterRegistrationBean<TraceIdFilter> traceIdFilterRegistrationBean() {FilterRegistrationBean<TraceIdFilter> registrationBean = new FilterRegistrationBean<>(new TraceIdFilter());registrationBean.setOrder(Ordered.HIGHEST_PRECEDENCE);return registrationBean;}}
工具类
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.util.Objects;public class WebUtils extends org.springframework.web.util.WebUtils {/*** 获取 ServletRequestAttributes* @return {ServletRequestAttributes}*/public static ServletRequestAttributes getServletRequestAttributes() {return (ServletRequestAttributes) Objects.requireNonNull(RequestContextHolder.getRequestAttributes());}/*** 获取 HttpServletRequest* @return {HttpServletRequest}*/public static HttpServletRequest getRequest() {return getServletRequestAttributes().getRequest();}/*** 获取 HttpServletResponse* @return {HttpServletResponse}*/public static HttpServletResponse getResponse() {return getServletRequestAttributes().getResponse();}}
拦截器
import cn.com.nmd.auth.annotation.Loggable;
import cn.com.nmd.auth.utils.SecurityUtils;
import cn.com.nmd.auth.utils.WebUtils;
import cn.com.nmd.base.constant.Constants;
import cn.com.nmd.base.model.SysOperationLog;
import cn.com.nmd.base.utils.IpUtils;
import cn.hutool.core.collection.ListUtil;
import cn.hutool.core.util.ArrayUtil;
import cn.hutool.core.util.URLUtil;
import com.alibaba.fastjson.JSON;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.Signature;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.slf4j.MDC;
import org.springframework.http.HttpHeaders;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.multipart.MultipartFile;import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.*;@Aspect
@Component
public class LogAspect {private static final Logger logger = LoggerFactory.getLogger(LogAspect.class);private final List<Class<?>> ignoredParamClasses = ListUtil.toList(ServletRequest.class, ServletResponse.class,MultipartFile.class);// 定义切入点，匹配带有 @Loggable 注解的方法@Pointcut("@annotation(cn.com.nmd.auth.annotation.Loggable)")public void loggableMethod() {}@Around("loggableMethod()")public Object aroundLog(ProceedingJoinPoint joinPoint) throws Throwable {// 获取 RequestHttpServletRequest request = WebUtils.getRequest();String operateLog = request.getHeader("operation-log");// 开始时间long startTime = System.currentTimeMillis();SysOperationLog sysOperationLog = null;boolean b = false;if ("true".equals(operateLog)) {// 获取目标方法MethodSignature signature = (MethodSignature) joinPoint.getSignature();Method method = signature.getMethod();Loggable loggable = method.getAnnotation(Loggable.class);b = loggable.logResponse();sysOperationLog = this.buildLog(loggable, joinPoint);}Throwable throwable = null;Object result = null;try {result = joinPoint.proceed();return result;} catch (Throwable e) {throwable = e;throw e;} finally {if ("true".equals(operateLog)) {// 操作日志记录处理this.handleLog(startTime, sysOperationLog, throwable, b, result);}}}private void handleLog(long startTime, SysOperationLog sysOperationLog, Throwable throwable, boolean b, Object result) {try {// 结束时间long executionTime = System.currentTimeMillis() - startTime;// 执行时长sysOperationLog.setOperateTime(executionTime);// 执行状态String logStatus = throwable == null ? Constants.SUCCESS : Constants.FAIL;sysOperationLog.setStatus(logStatus);// 执行结果if (b) {Optional.ofNullable(result).ifPresent(x -> sysOperationLog.setResult(JSON.toJSONString(x)));}else {sysOperationLog.setResult(("{\"code\": \"200\",\"message\": \"\",\"data\": \"\"}"));}// 保存操作日志logger.info("保存的日志数据：{}", JSON.toJSONString(sysOperationLog));} catch (Exception e) {logger.error("记录操作日志异常：{}", JSON.toJSONString(sysOperationLog));}}private SysOperationLog buildLog(Loggable loggable, ProceedingJoinPoint joinPoint) {HttpServletRequest request = WebUtils.getRequest();SysOperationLog operationLog = new SysOperationLog();operationLog.setIp(IpUtils.getIpAddr(request));operationLog.setMethod(request.getMethod());operationLog.setUserAgent(request.getHeader(HttpHeaders.USER_AGENT));operationLog.setUri(URLUtil.getPath(request.getRequestURI()));operationLog.setType(loggable.type());operationLog.setModule(loggable.module());operationLog.setTraceId(MDC.get(Constants.TRACE_ID));operationLog.setCreateTime(new Date());operationLog.setParams(getParams(joinPoint));operationLog.setCreateUserId(SecurityUtils.getUserId());return operationLog;}/*** 获取方法参数** @param joinPoint 切点* @return 当前方法入参的Json Str*/public String getParams(ProceedingJoinPoint joinPoint) {// 获取方法签名Signature signature = joinPoint.getSignature();String strClassName = joinPoint.getTarget().getClass().getName();String strMethodName = signature.getName();MethodSignature methodSignature = (MethodSignature) signature;logger.debug("[getParams]，获取方法参数[类名]:{},[方法]:{}", strClassName, strMethodName);String[] parameterNames = methodSignature.getParameterNames();Object[] args = joinPoint.getArgs();Method method = ((MethodSignature) signature).getMethod();if (ArrayUtil.isEmpty(parameterNames)) {return null;}Map<String, Object> paramsMap = new HashMap<>();for (int i = 0; i < parameterNames.length; i++) {Object arg = args[i];if (arg == null) {paramsMap.put(parameterNames[i], null);continue;}Class<?> argClass = arg.getClass();// 忽略部分类型的参数记录for (Class<?> ignoredParamClass : ignoredParamClasses) {if (ignoredParamClass.isAssignableFrom(argClass)) {arg = "ignored param type: " + argClass;break;}}paramsMap.put(parameterNames[i], arg);}// 特别处理 @RequestBody 参数for (int i = 0; i < parameterNames.length; i++) {Object arg = args[i];if (arg != null && method.getParameterAnnotations()[i].length > 0) {RequestBody requestBodyAnnotation = method.getParameterAnnotations()[i][0].annotationType().getAnnotation(RequestBody.class);if (requestBodyAnnotation != null) {paramsMap.put(parameterNames[i], arg);}}}String params = "";try {// 入参类中的属性可以通过注解进行数据落库脱敏以及忽略等操作params = JSON.toJSONString(paramsMap);} catch (Exception e) {logger.error("[getParams]，获取方法参数异常，[类名]:{},[方法]:{}", strClassName, strMethodName, e);}return params;}
}示例
@Loggable(value = "保存采集信息", type = "insert", module = "业务管理-场站管理", logResponse = true)